* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

.web {}

.web .carouselBox {
    width: 1000px;
    height: 562px;
    border: 2px dashed red;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    overflow: hidden;
}

.web .carouselBox ul {
    width: 100%;
    white-space: nowrap;
    font-size: 0;
    transition: all .3s;
}

.web .carouselBox ul li {
    display: inline-block;
    width: 100%;
}

.web .carouselBox ul li img {
    width: 100%;
}

.web .carouselBox .arrow {
    position: absolute;
    width: 160px;
    height: 562px;
    text-align: center;
    line-height: 562px;
    font-size: 36px;
    top: 0;
    color: #fff;
    transition: all .3s;
    cursor: pointer;
}

.web .carouselBox .leftArrow {
    left: 0;
    background: linear-gradient(90deg, #000, transparent);
    transform: translateX(-100%);
}

.web .carouselBox .rightArrow {
    right: 0;
    background: linear-gradient(-90deg, #000, transparent);
    transform: translateX(100%);
}

.web .carouselBox:hover .arrow {
    transform: translateX(0%);
}

.pointBox {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-size: 0;
}

.pointBox ol {
    display: inline-block;
    padding: 12px 8px;
    white-space: nowrap;
    background-color: skyblue;
    border-radius: 20px;
}

.web .carouselBox .pointBox ol li {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    display: inline-block;
    background-color: #fff;
    margin: 0 4px;
    cursor: pointer;
}

.web .carouselBox .pointBox ol .active {
    background-color: orange;
}